Data sheet Solenoid valves EVRA and EVRATfiles.danfoss.com/technicalinfo/dila/01/DKRCI.PD.BM0.B8...Data sheet Solenoid valves EVRA and EVRAT Danfoss | DCS (mwa) | 2018.03 DKRCI.PD.BM0.B8.22

Data sheet

Solenoid valves EVRA and EVRAT

DKRCI.PD.BM0.B8.22 | 520H0120 | 1© Danfoss | DCS (mwa) | 2018.03

EVRA is a direct or servo operated solenoid valve for liquid, suction and hot gas lines with ammonia or fluorinated refrigerants.

EVRA valves are supplied complete or as separate components, i.e. valve body, coil and flanges can be ordered separately.

EVRAT is an assisted lift, servo operated solenoid valve for liquid, suction and hot gas lines with ammonia and fluorinated refrigerants.

EVRAT is specially designed to open - and stay open - at a pressure drop of 0 bar. The EVRAT solenoid valve is thus suitable for use in all plant where the required opening differential pressure is 0 bar.

EVRAT is available as components, i.e. valve body, flanges and coil must be ordered separately.

EVRAT 10, 15 and 20 all have spindle for manual operation.

Technical data • Refrigerants: Applicable to HCFC, HFC and R717 (Ammonia).

• Temperature of medium -40°C – +105°C. Max. 130°C during defrosting.

Type

Opening differential pressure with standard coil (∆p bar)

Temperatureof medium

°C

Max. workingpressure

PBbar

kv-value1)

m3/hMin.

Max. (= MOPD) liquid 2)

10 W a.c. 12 W a.c. 20 W d.c.EVRA 3 0.00 21 25 14 –40 → 105 42 0.23

EVRA 10 0.05 21 25 18 –40 → 105 42 1.5

EVRAT 10 0.00 14 21 16 –40 → 105 42 1.5

EVRA 15 0.05 21 25 18 –40 → 105 42 2.7

EVRAT 15 0.00 14 21 16 –40 → 105 42 2.7

EVRA 20 with a.c. coil 0.05 21 25 13 –40 → 105 42 4.5

EVRA 20 with d.c. coil 0.05 19 21 16 –40 → 105 42 4.5

EVRAT 20 0.00 14 21 13 –40 → 105 42 4.5

EVRA 25 0.20 21 25 14 –40 → 105 42 10.0

EVRA 32 0.20 21 25 14 –40 → 105 42 16.0

EVRA 40 0.20 21 25 14 –40 → 105 42 25.0

1) The kv value is the water flow in m3/h at a pressure drop across valve of 1 bar, ρ = 1000 kg/m3.2) MOPD for media in gas form is approx. 1 bar greater.

• Ambient temperature and enclosure for coilSee “Coils for solenoid valves”, DKRCC.PD.BS0.F.

• Classification: DNV, CRN, BV, EAC etc. To get an updated list of certification on the products please contact your local Danfoss Sales Company.

Data sheet | Solenoid valves type EVRA and EVRAT


Contents Page

Technical data .......................................................................................................................................................................................1

Ordering .................................................................................................................................................................................................3

Rated capacity ......................................................................................................................................................................................4

Liquid capacity .....................................................................................................................................................................................4

Suction vapour capacity ...................................................................................................................................................................5

Hotgas capacity ...................................................................................................................................................................................7

Design/ Function .............................................................................................................................................................................. 13

Material specification...................................................................................................................................................................... 14

Dimensions and weight ................................................................................................................................................................. 15



Ordering valve with coil

Type Manual Stem

Inlet connection

type

Orifice size

[mm]

Max OPD 10W AC

[bar]

Max OPD 20W DC

[bar]

Coil type Coil connection

Supply voltage [V] AC

Frequency

[Hz]

Power consumption

[W]

Singlepack/Multipack

(12 pcs.)

Code number

EVRA 3 No Flange* 3 21 14 BF230AS Cable (1 m/3.3 ft) 220 - 230 50 10 Multipack 032F310231

EVRA 3 No Flange* 3 21 14 BE230AS Connection Box 220 - 230 50 10 Multipack 032F310331

EVRA 3 No Flange* 3 21 14 BE230CS Connection Box 220 - 230 50/60 10 Multipack 032F310332

EVRA 10 No Flange* 10 21 18 BE230AS Connection Box 220 - 230 50 10 Multipack 032F620831

EVRA 10 Yes Flange* 10 21 18 BF230AS Cable (1 m/3.3 ft) 220 - 230 50 10 Singlepack 032F621231

EVRA 10 Yes Flange* 10 21 18 BE230AS Connection Box 220 - 230 50 10 Singlepack 032F621331

EVRA 10 Yes Flange* 10 21 18 BE230CS Connection Box 220 - 230 50/60 10 Singlepack 032F621332

EVRA 15 No Flange* 15 21 18 BF230AS Cable (1 m/3.3 ft) 220 - 230 50 10 Singlepack 032F621731

EVRA 15 No Flange* 15 21 18 BF230CS Cable (1 m/3.3 ft) 220 - 230 50/60 10 Singlepack 032F621732

EVRA 15 No Flange* 15 21 18 BE230AS Connection Box 220 - 230 50 10 Singlepack 032F621831

EVRA 15 No Flange* 15 21 18 BE230CS Connection Box 220 - 230 50/60 10 Singlepack 032F621832

EVRA 20 No Flange* 20 21 13 BF230AS Cable (1 m/3.3 ft) 220 - 230 50 10 Singlepack 032F622231

EVRA 20 No Flange* 20 21 13 BE230AS Connection Box 220 - 230 50 10 Singlepack 032F622331

EVRA 20 No Flange* 20 21 13 BE230CS Connection Box 220 - 230 50/60 10 Singlepack 032F622332

EVRA 25 Yes Flange* 25 21 14 BE230CS Connection Box 220 - 230 50/60 10 Singlepack 032F803432

Ordering valve without coilType Manual

StemInlet

connection type

Inlet size [in]

Orifice size

[mm]

Max OPD 10W AC

[bar]

Max OPD 12W AC

[bar]

Max OPD 20W DC

[bar]

Required coil type**

Singlepack/Multipack

(12 pcs.)

Code number

EVRA 3 No Flange* 3 21 25 14 AC / DC Multipack 032F3050

EVRA 10 Yes Flange* 10 21 25 18 AC / DC Singlepack 032F6210

EVRA 10 No Flange* 10 21 25 18 AC / DC Singlepack 032F6211

EVRAT 10 Yes Flange* 10 14 21 16 AC / DC Singlepack 032F6214




EVRA 20 Yes Flange* 20 21 25 13 AC Singlepack 032F6220



EVRA 25 No Flange* 25 21 25 14 AC / DC Singlepack 032F6226

EVRA 32 Yes Butt weld DIN 11/4 22.2 21 25 14 AC / DC Singlepack 042H1126

EVRA 32 No Butt weld DIN 11/4 22.2 21 25 14 AC / DC Singlepack 042H1127


EVRA 40 No Butt weld DIN 11/2 25.4 21 25 14 AC / DC Singlepack 042H1129


EVRA 40 Yes Butt weld DIN 2 25.4 21 25 14 AC / DC Singlepack 042H1132

EVRA 32 Yes Butt weld ANSI 36.10 11/4 22.2 21 25 14 AC / DC Singlepack 042H1140



EVRA 40 Yes Butt weld ANSI 36.10 2 25.4 21 25 14 AC / DC Singlepack 042H1143

* Includes flange gaskets and bolts. For ordering flanges; please downlad the data sheet DKRCI.PY.000.B from www.danfoss.com** For ordering coils; please download the data sheet DKRCC.PD.BS0.F from www.danfoss.com



Capacity

Capacities are based on liquid temperature tl = +25°C ahead of valve, evaporating temperature te = −10°C, and superheat 0 K.

Rated capacity

EVRA 3 17.8 25.1 30.8 35.6 39.8

EVRA/T 10 116.0 164.0 201.0 232.0 259.0

EVRA/T 15 209.0 295.0 362.0 418.0 467.0

EVRA/T 20 348.0 492.0 603.0 696.0 778.0

EVRA 25 773.0 1093.0 1340.0 1547.0 1729.0

EVRA 32 1237.0 1749.0 2144.0 2475.0 2766.0

EVRA 40 1933.0 2734.0 3349.0 3867.0 4322.0

R 717 (NH3)

R 22EVRA 3 3.8 5.3 6.6 7.6 8.5

EVRA/T 10 24.7 34.9 42.7 49.3 55.1

EVRA/T 15 44.4 62.8 76.9 88.8 99.2

EVRA/T 20 73.9 105.0 128.0 148.0 165.0

EVRA 25 165.0 232.0 285.0 329.0 368.0

EVRA 32 263.0 372.0 455.0 526.0 588.0

EVRA 40 411.0 581.0 712.0 822.0 919.0

R 134aEVRA 3 3.5 4.9 6.0 7.0 7.8

EVRA/T 10 22.7 32.2 39.4 45.5 50.8

EVRA/T 15 40.9 57.9 70.9 81.8 91.5

EVRA/T 20 68.2 96.5 118.0 136.0 153.0

EVRA 25 152.0 214.0 263.0 303.0 339.0

EVRA 32 243.0 343.0 420.0 485.0 542.0

EVRA 40 379.0 536.0 656.0 758.0 847.0

R 404AEVRA 3 2.6 3.7 4.6 5.3 5.9

EVRA/T 10 17.2 24.3 29.8 34.4 38.5

EVRA/T 15 31.0 43.8 53.7 62.0 69.3

EVRA/T 20 51.7 73.0 89.5 103.0 116.0

EVRA 25 115.0 162.0 199.0 230.0 257.0

EVRA 32 184.0 260.0 318.0 367.0 411.0

EVRA 40 287.0 406.0 497.0 574.0 642.0

Liquid capacity Ql kW

TypeLiquid capacity Qe kW at pressure drop across valve ∆p bar

0.1 0.2 0.3 0.4 0.5

Correction factorsWhen sizing valves, the plant capacity must be multiplied by a correction factor depending on liquid temperature tl ahead of valve/evaporator. When the corrected capacity is known, the selection can be made from the table.

1) Rated liquid and suction vapour capacity is based on evaporating temperature te = -10°C, liquid temperature ahead of valve tl = +25°C, and pressure drop across valve ∆p = 0.15 bar.

Rated hot gas capacity is based on condensing temperature tc = +40°C, pressure drop across valve ∆p = 0.8 bar, hot gas temperature th = +65°C, and subcooling of refrigerant ∆tsub = 4 K.

TypeRated capacity 1) [kW]

Liquid Suction vapour Hot gasR717 R22 R134a R404A R717 R22 R134a R404A R717 R22 R134a R404A

EVRA 3 21.8 4.6 4.3 3.2 6.5 2.1 1.7 1.7

EVRA/T 10 142.0 30.2 27.8 21.1 9.0 3.4 2.5 3.1 42.6 13.9 11.0 11.3

EVRA/T 15 256.0 54.4 50.1 38.0 16.1 6.2 4.4 5.5 76.7 24.9 19.8 20.3

EVRA/T 20 426.0 90.6 83.5 63.3 26.9 10.3 7.3 9.2 128.0 41.5 32.9 33.9

EVRA 25 947.0 201.0 186.0 141.0 59.7 22.8 16.3 20.4 284.0 92.3 73.2 75.3

EVRA 32 1515.0 322.0 297.0 225.0 95.5 36.5 26.1 32.6 454.0 148.0 117.0 120.0

EVRA 40 2368.0 503.0 464.0 351.0 149.0 57.0 40.8 51.0 710.0 231.0 183.0 188.0

tv°C −10 0 +10 +20 +25 +30 +40 +50

R 717 (NH3) 0.84 0.88 0.92 0.97 1.0 1.03 1.09 1.16

R 22, R 134a 0.76 0.81 0.88 0.96 1.0 1.05 1.16 1.31

R 404A 0.70 0.76 0.84 0.94 1.0 1.07 1.24 1.47



Capacity(continued)

Capacities are based on liquid temperature tl = +25°C ahead of evaporator.The table values refer to the evaporator capacity and are given as a function of evaporating temperature te and pressure drop ∆p across valve.Capacities are based on dry, saturated vapour ahead of valve.During operation with superheated vapour ahead of valve, the capacities are reduced by 4% for each 10 K superheat.

R 717 (NH3)

R 22

EVRA/T 10

0.1 3.4 4.5 5.9 7.3 8.9 10.6

0.15 4.0 5.4 7.0 9.0 10.9 13.0

0.2 4.5 6.1 7.9 10.0 12.6 15.0

EVRA/T 15

0.1 6.1 8.1 10.7 13.2 16.0 19.1

0.15 7.2 9.7 12.5 16.1 19.6 23.4

0.2 8.0 11.0 14.2 18.0 22.6 27.0

EVRA/T 20

0.1 10.2 13.5 17.8 21.9 26.6 31.9

0.15 12.1 16.1 20.9 26.9 32.6 39.0

0.2 13.4 18.3 23.7 29.9 37.7 45.1

EVRA 25

0.1 22.6 30.0 39.5 48.7 59.2 70.8

0.15 26.7 35.9 46.3 59.7 72.5 86.7

0.2 29.8 40.5 52.7 66.4 83.7 100.0

EVRA 32

0.1 36.2 47.8 63.2 77.9 94.7 113.0

0.15 42.7 57.4 74.1 95.5 116.0 139.0

0.2 47.7 64.8 84.3 106.0 134.0 160.0

EVRA 40

0.1 56.5 74.8 98.8 122.0 148.0 177.0

0.15 66.8 89.8 116.0 149.0 181.0 217.0

0.2 74.5 101.0 132.0 166.0 209.0 251.0

EVRA/T 10

0.1 1.4 1.8 2.3 2.8 3.4 4.0

0.15 1.6 2.1 2.7 3.4 4.1 4.9

0.2 1.8 2.4 3.1 3.8 4.8 5.6

EVRA/T 15

0.1 2.5 3.2 4.1 5.0 6.1 7.2

0.15 2.9 3.8 4.8 6.2 7.4 8.8

0.2 3.3 4.3 5.5 6.8 8.6 10.2

EVRA/T 20

0.1 4.1 5.3 6.8 8.4 10.1 12.0

0.15 4.9 6.4 8.1 10.3 12.3 14.7

0.2 5.5 7.2 9.2 11.4 14.3 16.9

EVRA 25

0.1 9.1 11.8 15.2 18.6 22.4 26.6

0.15 10.9 14.2 17.9 22.8 27.4 32.6

0.2 12.2 16.1 20.4 25.3 31.7 37.6

EVRA 32

0.1 14.6 18.9 24.3 29.8 35.8 42.6

0.15 17.4 22.7 28.8 36.5 43.8 52.2

0.2 19.6 25.7 32.6 40.5 50.7 60.2

EVRA 40

0.1 22.8 29.5 38.1 46.5 56.0 66.5

0.15 27.2 35.4 45.0 57.0 68.6 81.5

0.2 30.5 40.2 51.0 63.3 79.2 94.0

tv°C −10 0 +10 +20 +25 +30 +40 +50

R 717 (NH3) 0.84 0.88 0.92 0.97 1.0 1.03 1.09 1.16

R 22 0.76 0.81 0.88 0.96 1.0 1.05 1.16 1.31

Suction vapour capacity Qe kW

Correction factorsWhen sizing valves, the evaporator capacity must be multiplied by a correction factor depending on liquid temperature tl ahead of expansion valve. When the corrected capacity is known, the selection can be made from the table.

TypePressure drop across valve

∆p bar

Suction vapour capacity Qe kW at evaporating temperature te °C

–40 –30 –20 –10 0 +10



Capacity(continued)

Capacities are based on liquid temperature tl = +25°C ahead of evaporator.The table values refer to the evaporator capacity and are given as a function of evaporating temperature te and pressure drop ∆p across valve.Capacities are based on dry, saturated vapour ahead of valve.During operation with superheated vapour ahead of valve, the capacities are reduced by 4% for each 10 K superheat.

R 134aEVRA/T 10

0.1 0.87 1.2 1.6 2.1 2.6 3.2

0.15 0.99 1.4 1.9 2.4 3.2 3.9

0.2 1.1 1.6 2.1 2.8 3.5 4.5

EVRA/T 15

0.1 1.6 2.1 2.8 3.8 4.7 5.7

0.15 1.8 2.5 3.4 4.4 5.7 7.0

0.2 2.0 2.8 3.8 5.0 6.3 8.1

EVRA/T 20

0.1 2.6 3.6 4.7 6.3 7.8 9.5

0.15 3.0 4.2 5.6 7.3 9.5 11.7

0.2 3.3 4.7 6.4 8.3 10.5 13.5

EVRA 25

0.1 5.8 7.9 10.5 13.9 17.2 21.1

0.15 6.6 9.3 12.5 16.3 21.1 25.9

0.2 7.3 10.4 14.1 18.5 23.4 29.9

EVRA 32

0.1 9.3 12.6 16.8 22.2 27.7 33.8

0.15 10.6 14.9 20.0 26.1 33.8 41.4

0.2 11.7 16.6 22.6 29.6 37.4 47.8

EVRA 40

0.1 14.5 19.8 26.3 34.8 43.3 52.8

0.15 16.5 23.3 31.3 40.8 52.8 64.8

0.2 18.3 26.0 35.3 46.3 58.5 74.8

R 404A

EVRA/T 10

0.1 1.2 1.5 2.0 2.5 3.1 3.7

0.15 1.4 1.8 2.4 3.1 3.8 4.6

0.2 1.6 2.1 2.7 3.4 4.3 5.3

EVRA/T 15

0.1 2.1 2.7 3.6 4.5 5.5 6.6

0.15 2.5 3.3 4.3 5.5 6.8 8.2

0.2 2.8 3.7 4.9 6.1 7.8 9.5

EVRA/T 20

0.1 3.5 4.6 6.0 7.5 9.2 11.1

0.15 4.1 5.5 7.1 9.2 11.3 13.6

0.2 4.6 6.2 8.1 10.2 13.0 15.8

EVRA 25

0.1 7.7 10.1 13.3 16.6 20.4 24.6

0.15 9.1 12.1 15.8 20.4 25.0 30.3

0.2 10.3 13.8 18.0 22.7 28.8 35.0

EVRA 32

0.1 12.3 16.2 21.3 26.6 32.6 39.4

0.15 14.6 19.4 25.3 32.6 40.0 48.5

0.2 16.5 22.0 28.8 36.3 46.1 56.0

EVRA 40

0.1 19.3 25.3 33.3 41.5 51.0 61.5

0.15 22.9 30.3 39.5 51.0 62.5 75.6

0.2 25.8 34.5 45.0 56.8 72.1 87.5

tv°C −10 0 +10 +20 +25 +30 +40 +50

R 134a 0.76 0.81 0.88 0.96 1.0 1.05 1.16 1.31

R 404A 0.70 0.76 0.84 0.94 1.0 1.07 1.24 1.47

Suction vapour capacity Qe kW

Correction factorsWhen sizing valves, the evaporator capacity must be multiplied by a correction factor depending on liquid temperature tl ahead of expansion valve. When the corrected capacity is known, the selection can be made from the table.

TypePressure drop across valve

∆p bar

Suction vapour capacity Qe kW at evaporating temperature te °C

–40 –30 –20 –10 0 +10



Capacity(continued)

An increase in hot gas temperature th of 10 K, based on th = tc +25°C, reduces valve capacity approx. 2% and vice versa.

A change in evaporating temperature te changes valve capacity; see correction factor table below.

Type Pressure drop across valve

∆p bar

Hot gas capacity Qe kW

Evaporating temp.te =−10°C. Hot gas temp. th = tc + 25°C.Subcooling ∆tsub=4K

Condensing temperature tc °C

+20 +30 +40 +50 +60

EVRA 3

0.1 1.8 2.1 2.3 2.5 2.6

0.2 2.6 2.9 3.2 3.5 3.7

0.4 3.8 4.2 4.6 4.9 5.3

0.8 5.1 6.0 6.5 7.1 7.6

1.6 7.4 8.3 9.1 9.9 10.9

EVRA/T 10

0.1 12.0 13.4 14.7 16.0 17.2

0.2 17.1 19.0 20.9 22.7 24.4

0.4 24.5 27.1 29.7 32.2 34.7

0.8 34.0 39.0 42.6 46.1 49.5

1.6 48.5 53.8 59.1 64.3 71.3

EVRA/T 15

0.1 21.7 24.1 26.4 28.8 31.0

0.2 30.8 34.2 37.5 40.8 44.0

0.4 44.1 48.8 53.5 58.0 62.4

0.8 61.2 70.3 76.7 83.0 89.1

1.6 87.4 96.9 106.0 116.0 128.0

EVRA/T 20

0.1 36.1 40.1 44.0 48.0 51.7

0.2 51.4 57.0 62.6 68.0 73.2

0.4 73.5 81.3 89.1 96.7 104.0

0.8 102.0 117.0 128.0 138.0 148.0

1.6 146.0 161.0 177.0 193.0 214.0

EVRA 25

0.1 80.2 89.1 98.0 107.0 115.0

0.2 114.0 127.0 139.0 151.0 163.0

0.4 163.0 181.0 198.0 215.0 231.0

0.8 227.0 260.0 284.0 307.0 330.0

1.6 324.0 358.0 394.0 429.0 475.0

EVRA 32

0.1 128.0 143.0 157.0 171.0 184.0

0.2 183.0 203.0 223.0 242.0 260.0

0.4 261.0 289.0 317.0 344.0 370.0

0.8 362.0 416.0 455.0 492.0 528.0

1.6 518.0 574.0 631.0 688.0 761.0

EVRA 40

0.1 201.0 223.0 244.0 267.0 287.0

0.2 286.0 317.0 348.0 378.0 407.0

0.4 408.0 452.0 495.0 537.0 578.0

0.8 566.0 650.0 710.0 769.0 825.0

1.6 809.0 897.0 986.0 1074.0 1188.0

R 717 (NH3)

to °C −40 −30 −20 −10 0 +10

R 717 (NH3) 0.89 0.91 0.96 1.0 1.06 1.10

Hot gas capacity Qh kW

Correction factorWhen sizing valves, the table value must be multiplied by a correction factor depending on evaporating temperature te.



Capacity(continued)



R 22


∆p bar




+20 +30 +40 +50 +60

EVRA 3

0.1 0.68 0.72 0.76 0.78 0.79

0.2 0.97 1.0 1.1 1.1 1.1

0.4 1.4 1.5 1.5 1.6 1.6

0.8 1.9 2.0 2.1 2.3 2.3

1.6 2.7 2.9 3.0 3.1 3.2

EVRA/T 10

0.1 4.4 4.7 4.9 5.1 5.2

0.2 6.3 6.7 7.0 7.2 7.3

0.4 9.0 9.6 10.0 10.3 10.4

0.8 12.4 13.2 13.9 14.7 14.9

1.6 17.5 18.6 19.6 20.2 20.5

EVRA/T 15

0.1 8.0 8.5 8.9 9.2 9.3

0.2 11.4 12.1 12.6 13.0 13.2

0.4 16.3 17.2 18.0 18.5 18.7

0.8 22.3 23.1 24.9 26.5 26.8

1.6 31.5 33.5 35.2 36.4 36.9

EVRA/T 20

0.1 13.3 14.1 14.8 15.3 15.5

0.2 19.0 20.1 21.0 21.7 22.0

0.4 27.1 28.7 30.0 30.9 31.2

0.8 37.1 38.4 41.5 44.2 44.6

1.6 52.5 55.9 58.6 60.6 61.5

EVRA 25

0.1 29.6 31.4 32.9 34.0 34.4

0.2 42.1 44.6 46.7 48.2 48.8

0.4 60.2 63.8 66.6 68.6 69.4

0.8 82.5 87.9 92.3 98.2 99.2

1.6 117.0 124.0 130.0 135.0 137.0

EVRA 32

0.1 47.4 50.2 52.6 54.4 55.0

0.2 67.4 71.4 74.7 77.1 78.1

0.4 96.3 102.0 107.0 110.0 111.0

0.8 132.0 140.0 148.0 157.0 159.0

1.6 187.0 199.0 209.0 216.0 219.0

EVRA 40

0.1 74.0 78.5 82.3 85.0 86.0

0.2 105.0 112.0 117.0 121.0 122.0

0.4 151.0 159.0 167.0 172.0 174.0

0.8 206.0 222.0 231.0 246.0 248.0

1.6 291.0 310.0 326.0 337.0 342.0

to °C −40 −30 −20 −10 0 +10

R 22 0.90 0.94 0.97 1.0 1.03 1.05


Hot gas capacity Qh kW



R 134a


∆p bar




+20 +30 +40 +50 +60

EVRA 3

0.1 0.54 0.57 0.6 0.61 0.6

0.2 0.77 0.82 0.85 0.86 0.85

0.4 1.1 1.2 1.2 1.2 1.2

0.8 1.5 1.6 1.7 1.8 1.8

1.6 2.2 2.3 2.4 2.5 2.4

EVRA/T 10

0.1 3.5 3.7 3.9 4.0 3.9

0.2 5.0 5.3 5.5 5.6 5.6

0.4 7.0 7.7 7.9 8.0 7.9

0.8 9.9 10.5 11.0 11.6 11.4

1.6 14.3 15.1 15.7 16.0 15.9

EVRA/T 15

0.1 6.4 6.7 7.0 7.1 7.1

0.2 9.1 9.6 10.0 10.1 10.0

0.4 12.6 13.8 14.2 14.4 14.3

0.8 17.9 19.0 19.8 20.8 20.5

1.6 25.7 27.2 28.2 28.8 28.6

EVRA/T 20

0.1 10.6 11.2 11.7 11.8 11.8

0.2 15.1 16.0 16.6 16.8 16.7

0.4 21.0 22.9 23.7 24.0 23.8

0.8 29.8 31.6 33.0 34.7 34.2

1.6 42.8 45.3 47.1 47.9 47.6

EVRA 25

0.1 23.6 24.9 25.9 26.4 26.2

0.2 33.6 35.5 36.8 37.4 37.1

0.4 46.6 51.0 52.7 53.4 52.9

0.8 66.2 70.2 73.2 77.0 76.0

1.6 95.2 101.0 105.0 107.0 106.0

EVRA 32

0.1 37.6 39.8 41.4 42.1 41.8

0.2 53.8 56.8 58.9 59.8 59.4

0.4 74.7 81.6 84.3 85.4 84.6

0.8 106.0 112.0 117.0 123.0 122.0

1.6 152.0 161.0 167.0 170.0 169.0

EVRA 40

0.1 58.8 62.3 64.7 65.8 65.3

0.2 84.1 88.8 92.1 93.5 92.8

0.4 117.0 127.0 132.0 134.0 132.0

0.8 166.0 176.0 183.0 192.0 190.0

1.6 238.0 252.0 262.0 266.0 265.0

to °C −40 −30 −20 −10 0 +10

R 134a 0.88 0.92 0.98 1.0 1.04 1.08

Capacity(continued) Hot gas capacity Qh kW







∆p bar




+20 +30 +40 +50 +60

EVRA 3

0.1 0.62 0.63 0.62 0.59 0.54

0.2 0.87 0.89 0.88 0.83 0.76

0.4 1.2 1.3 1.3 1.2 1.1

0.8 1.7 1.7 1.7 1.7 1.5

1.6 2.4 2.5 2.4 2.3 2.1

EVRA/T 10

0.1 4.0 4.1 4.0 3.8 3.5

0.2 5.7 5.8 5.7 5.5 5.0

0.4 8.1 8.2 8.2 7.8 7.0

0.8 11.1 11.4 11.3 11.1 10.1

1.6 15.7 16.0 15.8 15.2 13.9

EVRA/T 15

0.1 7.3 7.4 7.3 6.9 6.3

0.2 10.2 10.4 10.3 9.8 8.9

0.4 14.6 14.8 14.7 14.0 12.7

0.8 20.1 20.4 20.3 20.0 18.1

1.6 28.3 28.8 28.4 27.4 25.0

EVRA/T 20

0.1 12.1 12.3 12.1 11.5 10.5

0.2 17.1 17.3 17.2 16.3 14.9

0.4 24.4 24.7 24.5 23.3 21.1

0.8 33.4 34.0 33.9 33.3 30.2

1.6 47.1 48.0 47.4 45.6 41.6

EVRA 25

0.1 26.8 27.4 26.9 25.6 23.3

0.2 37.9 38.4 38.2 36.3 33.0

0.4 54.2 54.9 54.5 51.7 47.0

0.8 74.2 75.6 75.3 74.0 67.2

1.6 105.0 107.0 105.0 101.0 92.5

EVRA 32

0.1 43.0 43.8 43.0 40.9 37.3

0.2 60.6 61.4 61.1 58.1 52.8

0.4 86.7 87.8 87.2 82.7 75.2

0.8 119.0 121.0 120.0 118.0 107.0

1.6 167.0 171.0 168.0 162.0 148.0

EVRA 40

0.1 67.0 68.5 67.3 64.0 58.3

0.2 94.8 96.0 95.5 90.8 82.5

0.4 136.0 137.0 136.0 129.0 117.0

0.8 186.0 189.0 188.0 185.0 168.0

1.6 262.0 266.0 263.0 253.0 231.0

to °C −40 −30 −20 −10 0 +10

R 404A 0.86 0.88 0.93 1.0 1.03 1.07

R 404A




Capacity(continued) Hot gas capacity Qh kW



EVRA 3

+90

+25 0.003 0.005 0.006 0.007 0.007 0.007 0.007 0.007 0.007

+35 0.004 0.005 0.007 0.009 0.009 0.01 0.01 0.01 0.01

+45 0.005 0.006 0.009 0.01 0.011 0.012 0.013 0.013 0.013

EVRA/T 10

+25 0.022 0.03 0.04 0.045 0.048 0.048 0.048 0.048 0.048

+35 0.026 0.036 0.048 0.056 0.061 0.064 0.065 0.065 0.065

+45 0.030 0.041 0.056 0.066 0.074 0.079 0.083 0.085 0.086

EVRA/T 15

+25 0.040 0.054 0.072 0.081 0.086 0.087 0.087 0.087 0.087

+35 0.046 0.064 0.086 0.1 0.109 0.115 0.117 0.117 0.117

+45 0.053 0.074 0.101 0.12 0.133 0.142 0.149 0.153 0.155

EVRA/T 20

+25 0.066 0.09 0.12 0.12 0.144 0.145 0.145 0.145 0.145

+35 0.077 0.107 0.144 0.167 0.182 0.191 0.195 0.195 0.195

+45 0.089 0.124 0.169 0.199 0.211 0.237 0.248 0.255 0.258

EVRA 25

+25 0.143 0.197 0.26 0.296 0.313 0.316 0.316 0.316 0.316

+35 0.168 0.232 0.313 0.364 0.397 0.417 0.425 0.425 0.425

+45 0.194 0.269 0.368 0.434 0.482 0.516 1.54 0.555 0.561

EVRA 32

+25 0.233 0.322 0.424 0.483 0.511 0.516

+35 0.274 0.379 0.511 0.594 0.648 0.681 0.694

+45 0.316 0.439 0.601 0.709 0.787 0.842 0.882 0.906 0.916

EVRA 40

+25 0.362 0.503 0.663 0.755 0.798 0.806

+35 0.429 0.592 0.798 0.929 1.013 1.064 1.084

+45 0.495 0.686 0.939 1.107 1.23 1.316 1.378 1.416 1.431

R 717 (NH3)

R 22EVRA 3

+90

+25 0.008 0.011 0.014 0.016 0.017 0.017 0.017 0.017 0.017

+35 0.009 0.012 0.017 0.019 0.021 0.022 0.022 0.022 0.022

+45 0.010 0.014 0.019 0.022 0.025 0.026 0.027 0.028 0.028

EVRA/T 10

+25 0.051 0.069 0.092 0.104 0.109 0.111 0.111 0.111 0.111

+35 0.058 0.08 0.108 0.125 0.136 0.142 0.144 0.144 0.144

+45 0.066 0.092 0.125 0.146 0.162 0.172 0.179 0.183 0.183

EVRA/T 15

+25 0.091 0.125 0.165 0.187 0.197 0.199 0.199 0.199 0.199

+35 0.105 0.144 0.194 0.225 0.244 0.256 0.258 0.258 0.258

+45 0.119 0.165 0.224 0.263 0.291 0.31 0.322 0.329 0.330

EVRA/T 20

+25 0.152 0.208 0.275 0.311 0.328 0.332 0.332 0.332 0.332

+35 0.174 0.241 0.323 0.375 0.407 0.425 0.431 0.431 0.431

+45 0.193 0.275 0.374 0.439 0.485 0.516 0.537 0.548 0.55

EVRA 25

+25 0.331 0.453 0.599 0.677 0.715 0.722 0.722 0.722 0.722

+35 0.38 0.524 0.704 0.816 0.886 0.925 0.938 0.938 0.938

+45 0.431 0.598 0.814 0.956 1.056 1.125 1.169 1.192 1.197

EVRA 32

+25 0.539 0.739 0.976 1.106 1.168 1.179

+35 0.619 0.856 1.15 1.331 1.446 1.509 1.531

+45 0.704 0.978 1.329 1.562 1.723 1.837 1.909 1.947 1.955

EVRA 40

+25 0.843 1.155 1.525 1.728 1.825 1.843

+35 0.968 1.338 1.798 2.08 2.26 2.358 2.393

+45 1.1 1.528 2.078 2.44 2.693 2.87 2.383 3.043 3.055

Capacity(continued) Hot gas capacity Gh kg/s

An increase in hot gas temperature th of 10 K reduces valve capacity approx. 2% and vice versa.

TypeHot gas

temperature th°C

Condensing temperature

tk°C

Hot gas capacity Gh kg/s at pressure drop across valve ∆p bar

0.5 1 2 3 4 5 6 7 8



EVRA 3

+60

+25 0.007 0.009 0.011 0.012 0.012

+35 0.009 0.011 0.014 0.016 0.016 0.016 0.016

+45 0.01 0.012 0.018 0.02 0.021 0.021 0.021 0.021 0.021

EVRA/T 10

+25 0.048 0.06 0.074 0.077 0.077

+35 0.055 0.071 0.092 0.103 0.104 0.104

+45 0.06 0.084 0.111 0.127 0.134 0.135 0.135 0.135 0.135

EVRA/T 15

+25 0.081 0.108 0.134 0.14 0.14

+35 0.094 0.129 0.166 0.192 0.187 0.187 0.187

+45 0.108 0.151 0.2 0.228 0.241 0.244 0.244 0.244 0.244

EVRA/T 20

+25 0.134 0.18 0.223 0.233 0.233

+35 0.157 0.215 0.276 0.307 0.312 0.312 0.312

+45 0.181 0.252 0.333 0.381 0.403 0.407 0.407 0.407 0.407

EVRA 25

+25 0.292 0.391 0.486 0.506 0.506

+35 0.341 0.467 0.602 0.668 0.679 0.679 0.679

+45 0.393 0.549 0.725 0.83 0.876 0.885 0.885 0.885 0.885

EVRA 32

+25 0.478 0.638 0.793 1.826 0.826

+35 0.556 0.763 0.994 1.091 1.108 1.108 1.108

+45 0.641 0.897 1.197 1.354 1.432 1.446 1.446 1.446 1.446

EVRA 40

+25 0.747 0.998 1.24 1.291 1.291

+35 0.87 1.192 1.553 1.704 1.731 1.731 1.731

+45 1.002 1.402 1.87 2.117 2.237 2.259 2.259 2.259

EVRA 3

+60

+25 0.01 0.013 0.018 0.021 0.022 0.023 0.023 0.023 0.023

+35 0.011 0.015 0.02 0.024 0.027 0.028 0.029 0.029 0.03

+45 0.012 0.017 0.023 0.028 0.032 0.034 0.035 0.036 0.037

EVRA/T 10

+25 0.063 0.087 0.116 0.134 0.145 0.148 0.149 0.149 0.149

+35 0.072 0.1 0.134 0.158 0.174 0.184 0.19 0.19 0.192

+45 0.081 0.112 0.153 0.182 0.203 0.228 0.228 0.237 0.239

EVRA/T 15

+25 0.113 0.157 0.21 0.242 0.26 0.267 0.269 0.269 0.269

+35 0.129 0.18 0.242 0.285 0.313 0.332 0.341 0.342 0.346

+45 0.146 0.202 0.275 0.327 0.365 0.393 0.411 0.424 0.431

EVRA/T 20

+25 0.189 0.262 0.35 0.403 0.433 0.445 0.449 0.449 0.449

+35 0.215 0.3 0.404 0.474 0.521 0.552 0.569 0.57 0.576

+45 0.243 0.337 0.459 0.545 0.609 0.656 0.684 0.707 0.719

EVRA 25

+25 0.411 0.57 0.763 0.878 0.942 0.969 0.978 0.978 0.978

+35 0.468 0.653 0.881 1.032 1.136 1.203 1.239 1.241 1.253

+45 0.529 0.734 1.0 1.188 1.326 1.43 1.49 1.539 1.566

EVRA 32

+25 0.672 0.931 1.245 1.432 1.539 1.581 1.581 1.581 1.581

+35 0.765 1.069 1.436 1.686 1.854 1.964 2.022 2.025 2.025

+45 0.862 1.198 1.632 1.939 1.836 2.34 2.433 2.513 2.557

EVRA 40

+25 1.05 1.454 1.946 2.238 2.406 2.471 2.471 2.471 2.471

+35 1.195 1.657 2.245 2.635 2.897 3.068 3.161 3.166 3.166

+45 1.348 1.873 2.55 3.03 3.384 3.65 3.801 3.926 3.995

R 134a

R 404A

TypeVarmgas-

temperatur th°C

Kondense- ringstemp.

tk°C

Varmgaskapacitet Gh kg/s ved trykfaldet i ventilen ∆p bar

0.5 1 2 3 4 5 6 7 8

Capacity(continued) Hot gas capacity Gh kg/s

An increase in hot gas temperature th of 10 K reduces valve capacity approx. 2% and vice versa.



EVRA 3

EVRA 25

4. Coil16. Armature18. Valve plate / Pilot valve plate20. Earth terminal24. Connection for flexible steel hose28. Gasket29. Pilot orifice30. O-ring31. Piston ring36. DIN plug40. Terminal box43. Valve cover44. O-ring45. Valve cover gasket48. Flange gasket49. Valve body51. Cover / Threaded plug53. Manual operation spindle59. Strainer73. Equalization hole74. Main channel75. Pilot channel76. Compression spring80. Diaphragm/Servo piston82. Support washer83. Valve seat84. Main valve plate

DesignFunction

EVRA solenoid valves are designed on two different principles:1. Direct operation2. Servo operation

1. Direct operationEVRA 3 is direct operated. The valve opens direct for full flow when the armature (16) moves up into the magnetic field of the coil. This means that the valve operates with a min. differential pressure of 0 bar.The teflon valve plate (18) is fitted direct on the armature (16). Inlet pressure acts from above on the armature and the valve plate. Thus, inlet pressure, spring force and the weight of the armature act to close the valve when the coil is currentless.

2. Servo operationEVRA/T 10 → 20 are servo operated with a “floating” diaphragm (80). The pilot orifice (29) of stainless steel is placed in the centre of the diaphragm. The teflon pilot valve plate (18) is fitted direct to the armature (16).When the coil is currentless, the main orifice and pilot orifice are closed. The pilot orifice and main orifice are held closed by the weight of the armature, the armature spring force and the differential pressure between inlet and outlet sides.

When current is applied to the coil the armature is drawn up into the magnetic field and opens the pilot orifice. This relieves the pressure above the diaphragm, i.e. the space above the diaphragm becomes connected to the outlet side of the valve. The differential pressure between inlet and outlet sides then presses the diaphragm away from the main orifice and opens it for full flow. Therefore a certain minimum

EVRA/T 10, 15 and 20

EVRA 32 and 40

differential pressure is necessary to open the EVRA valve and keep it open. For diffential pressure 0 bar use EVRAT valves.For EVRA 10 → 20 valves this differential pressure is 0.05 bar.When current is switched off, the pilot orifice closes. Via the equalization holes (73) in the diaphragm, the pressure above the diaphragm then rises to the same value as the inlet pressure and the diaphragm closes the main orifice.

EVRA 25, 32 and 40 are servo operated piston valves. The valves are closed with currentless coil. The servo piston (80) with main valve plate (84) closes against the valve seat (83) by means of the differential pressure between inlet and outlet side of the valve, the force of the compression spring (76) and possibly the piston weight.When current to the coil is switched on, the pilot orifice (29) opens. This relieves the pressure on the piston spring side of the valve. The differential pressure will then open the valve.The minimum differential pressure needed for full opening of the valves is 0.2 bar.

The manual opener of EVRA/EVRAT 10, 15, 20 and 25 is intended to be activated only during initial pressure testing of the refrigeration system.After pressure testing or service-related manual forced opening of the manual opener the spindle must be turned fully back to back-seated position to avoid any packing gland leakage.Furthermore it is essential that the sealing cap is properly reinstalled. This will eliminate any risk of leakage from the manual opener.



EVRA 3 EVRA/T 10/15/20

EVRA 25 EVRA 32/40

Material specification

No. Description Solenoid valves Material Analysis Mat.no. W.no. ISO EN

1Valve body EVRA 3 Free-cutting steel 11MnPb30 10277-3

Valve body EVRA/T 10/15/20 Cast-iron GJS-400-18-LT 1563

3 Armature tube EVRA 3/10/15/20 Stainless steel X2CrNi19-11 10088

4 Flange EVRA/T 3/10/15/20 Steel S235JRG2 10025

5Gasket EVRA 3 Aluminium Al 99.5 10210

Gasket EVRA/T 10/15/20 Rubber Cr

6 Gasket EVRA/T 3/10/15/20 asbestos-free

7 Armature tube nut EVRA/T 3/10/15/20 Stainless steel X8CrNiS18-9 10088

8 Cover EVRA/T 10/15/20 Cast-iron GJS-400-18-LT 1563

9 Cover/ thread plug EVRA/T 10/15/20 Free-cutting steel 11SMnPb30 10277-3

10 Gasket EVRA/T 10/15/20 Aluminium Al 99.5 10210

11 Bolts EVRA/T 10/15/20 Stainless steel A2-70 3506

12 Valve seat EVRA/T 10/15/20 Teflon (PTFE)

No. Description Solenoid valves Material Analysis Mat.no. W.no. ISO EN

1 Valve body EVRA 25/32/40 Cast-iron GJS-400-18-LT 1563

2 Armature tube nut EVRA 25/32/40 Stainless steel X8CrNiS 18-9 10088

3 Armature tube EVRA 25/32/40 Stainless steel X2CrNi19-11 10088

4Flange EVRA 25 Steel S235JRG2 10025

Flange EVRA 32/40 Steel P285QH 10222-4

5 Gasket EVRA 25/32/40 Aluminium Al 99.5 10210

6Gasket EVRA 25 asbestos-free

Gasket EVRA 32/40 Rubber Cr

7 Cover/thread plug EVRA 25 Free-cutting steel 11SMnPb30 10277-3

Cover/thread plug EVRA 32/40 Stainless steel X5CrNi17-10 10088

8 Gasket EVRA 25 Rubber CR

9 Bolts EVRA 25 Stainless steel A2-70 3506

10 Cover EVRA 25 Cast-iron GJS-400-18-LT 1563

11 Bolts EVRA 25/32/40 Stainless steel A2-70 3506

12 Valve seat EVRA 25 Teflon (PTFE)



Dimensions and weight

EVRA 3 → 20Coil with terminal box

EVRA 3Coil with cable

EVRA 3 → 20Coil with DIN plugs

EVRA/T 10 → 20Coil with terminal box

EVRA 10Coil with terminal box

Weight of coil10 W: approx. 0.3 kg

12 and 20 W: approx. 0.5 kg

Weight of flange setFor EVRA 3, 10 and 15: 0.6 kg

For EVRA 20: 0.9 kg

TypeH1 H2 H3 H4 L L1

L5 max.

BB1

max.Weight

1)10 W 12 W 20 W

mm mm mm mm mm mm mm mm mm mm kg

EVRA 3 84 19 124 65

75 85

80 68 1.2

EVRA/T 10 22 100 81 130 68 80 68 1.7

EVRA/T 15 100 81 130 68 80 68 1.8

EVRA/T 20 110 77 155 85 96 68 2.7

1) With coil, without flanges


EVRA 25, 32 and 40Coil with cable

EVRA 25, 32 and 40Coil with DIN plugs



EVRA 32 and 40Coil with terminal box

EVRA 32 and 40Coil with terminal box

Weigh of coil10 W: approx. 0.3 kg

12 and 20 W: approx. 0.5 kg

Weight of flange setFor EVRA 25: 0.9 kg

TypeH1 H2 H3 H4 L L1

L5 max.

BB1

max.Weight

1)10 W 12 W 20 W

mm mm mm mm mm mm mm mm mm mm kg

EVRA 25 46 141 78 162 92

75 85

95 68 3.0

EVRA 32 47 115 53 175 80 68 4.0

EVRA 40 47 115 53 175 80 68 4.0

1) With coil, without flanges

Dimensions and weight (continued)

Documents

Data sheet Solenoid valves EVRA and EVRATfiles.danfoss.com/technicalinfo/dila/01/DKRCI.PD.BM0.B8...Data sheet Solenoid valves EVRA and EVRAT Danfoss | DCS (mwa) | 2018.03 DKRCI.PD.BM0.B8.22